Paper feeding and tensioning mechanism



Feb. 23, 1932.

A. s. WHEELBARGER ET AL 1,846,453

PAPER FEEDING AND TENSIONING MECHANISM Original Filed 001;. 29, 1925 2 Sheets-Sheet /NVNTO)-75. Al. 55;? T .s. WHA'E; BARGER 6R0 V51? 6. com.

ATTORNEY Feb. 23, 1932. A. SfWHEELBARGERET AL I 1,846,463.

PAPER FEEDING AND TENSIONING MECHANISM Original Filed Oct. 29, 1925 2 Sheets-Sheet 2 //v v/v TORS. 141. BERT 5. wmm. BARGER.

6190 V55 6. COIL.

ATTORNEY.

Patented Feb. 23, 1932 UNITED STATES ALBERT S. WHEELBARGER AND GROVER C. COIL, OF DAYTON, OHI O, ASSIGNORS TO OI-IMER FARE REGISTER COMPANY, OF DAYTON, OHIO PAPER FEEDING AND TENSIONIN'G MECHANISM Original application filed. October 29, 1925, Serial No. 65,532. Divided and this application filed September This invention relates to an improved tensioning and feeding mechanism for a paper strip and is a division of the application of Albert S. lVheelbarger and Grover C. Coil, Serial Number 65,532, filed October 29, 1925. One of the objects of the invention is to provide novel means whereby the drum on which the record is wound is actuated so that the amount of paper wound thereon at each actuation of the machine will be uniform regardless of the thickness of the record roll. Heretofore the record roll has been actuated so that as the diameter of the roll increased the amount of paper wound thereon at each op eration of the machine would likewise increase, so that if said paper strip is used to print the detailed record of the various transactions of a cash register, the impressions thereon are not uniformly spaced. By the improved mechanism shown and described in this application the paper is so fed that the impressions on said paper will be uniformly spaced apart regardless of the diameter of the record roll. Another object of the invention is to provide improved tensioning means for said strip.

111 the drawings- Fig. 1 is an elevational view of the left side of the machine shown in said application of Albert S. \Vheelbarger and Grover C. Coil, Serial Number 65,532, with the casing removed, and

Fig. 2 is a cross-sectional elevational view thereof.

The crank handle 26 is rigidly secured to a shaft 25 which has rigidly mounted thereon a gear 2 1 which meshes with and drives a gear 23 mounted on the shaft 9. The gear 23 is operatively connected with a wrist pin 42 which actuates a pitman 41 whose other end is secured to a lever 43 by means of a pin 82. The lever 13 is mounted on a shaft 44 and the pin 82 projects outwardly so as to abut against the lower end of an L-shaped arm 127 mounted on a shaft 35.

The pin 82 is secured in an oscillating printing carrier 83. The gear 23 is twice the size of the gear 2-1 so that upon the crank handle 26 making two revolutions the oscillating printing carrier is given one complete oscil Serial No. 396,315.

lation. This printing carrier is provided with a platen 89. A paper roll 97 is mounted in the lower part of the machine and the paper strip 96 passes therefrom under a shaft 98, over a rod 99, around the platen 89 and is wound on the paper take-up roll 137. The rod 99 is mounted on a lever 100 fulcrumed on a pin 101 and the spring 102 connected to the said lever 100 pulls the rod 99 against the paper strip 96 holding the same under tension. Since the rod 99 is tensioned by means of the spring 102 and is held in position by the tension of the record paper, it is obvious that when the record paper was removed to insert a new record the rod 99 would move to such a position as to render it diflicult to thread the paper under the shaft 98, over the rod 99 and under the platen 89. In order to obviate this difficulty we have mounted lever 1 .9 on the shaft 98, which lever is actuated by means of a push and pull rod 150. \Vhen the paper is to be removed the rod 150 is pulled toward the rear of the machine which rotatcs the lever 149 anti-clockwise so that the lower end thereof is against the upper surface of the arm 100 holding it at the approximate position shown in Fig. 2.

The L-shaped arm or pusher 127 engages an oscillating lever 128 pivoted on a shaft 129. The lever 128 is provided with a pivoted link 130 which carries a double-nosed pawl 131 pivoted thereto by means of a pm 132. The double-nosed pawl 131 therefore moves with the lever 128 and, engages a ratchet 133 rigidly mounted on the shaft 129. A double-nosed pawl 131 is provided beneath the ratchet 133 to prevent retrograde move ment of the ratchet 133 which pawl is pivoted to a link 135 which is urged towards the ratchet by means of a spring 136. The paper take-up roll 137 for the record is engaged by a roller 138 on an arm 139 secured to a shaft 1-10 which shaft also has fixedly secured thereto an arm 141. It is obvious that as the thickness of the take-up roll increases the arm 139 will be moved in an anti-clockwise direction as viewed in Fig. 2 which will move the arm 141 in a like directiion so that the upper end of the arm 141 will be moved nearer and nearer to the rear of the machine as the thickness of the take-up roll increases. The upper end of the arm 141 is provided with an lip-standing lip 142 which engages a pin 143 on the lever 128. A spring 144 is attached to the pin 143 and to a side wall of the machine so as to normally pull the lever 128 and arm 141 to the front of the machine or towards the right as viewed in Fig. 1, thereby keeping the roller 138 in direct contact with the take-up roll 137. The spring 144 through the lever 128 is the actuating means to move the pusher 127 to the right so as to keep the right-hand end thereof in engagement with the pin 82. As the lip 142 on the arm 141 is moved towards the rear of the machine, or to the left as viewed in Fig. 1, as the thickness of the take-up roll increases the forward movement of the lever 128 is thereby varied so that the dog 131 slides over fewer and fewer teeth which will afford more and more play between the pusher 127 and the lever 128 thereby insuring equal spacing bet-ween successive impressions on the record.

Having now described our invention, we claim:

In a machine of the class described, a paper take-up roll, means whereby said roll is actuated to wind a. predetermined amount of paper thereon upon each actuation of the ma- 7 chine, said means including a ratchet operatively connected with said roll, an actuating lever,van actuating pawl on said lever to engage said ratchet, a pin on said lever, a shaft, an arm on said shaft engaging the periphery of said roll, and a second arm on said shaft engaging said pin to limit the movement, in one direction, of said lever.

In testimony whereof we aflix our signatures.

ALBERT S. WHEELBARGEB. GROVER C. COIL. 

